212212022423 has 2 divisors, whose sum is σ = 212212022424. Its totient is φ = 212212022422.

The previous prime is 212212022417. The next prime is 212212022509. The reversal of 212212022423 is 324220212212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212212022423 - 2¹² = 212212018327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212212022123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106106011211 + 106106011212.

It is an arithmetic number, because the mean of its divisors is an integer number (106106011212).

Almost surely, 2^212212022423 is an apocalyptic number.

212212022423 is a deficient number, since it is larger than the sum of its proper divisors (1).

212212022423 is an equidigital number, since it uses as much as digits as its factorization.

212212022423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 212212022423 its reverse (324220212212), we get a palindrome (536432234635).

The spelling of 212212022423 in words is "two hundred twelve billion, two hundred twelve million, twenty-two thousand, four hundred twenty-three".